ctrl-c in script Post: 302544257

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Top Forums Shell Programming and Scripting ctrl-c in script Post 302544257 by alexzander18 on Wednesday 3rd of August 2011 09:41:37 AM

08-03-2011

Registered User

ctrl-c in script

how to send ctrl-c signal in scripts ???
i am executing top command in .exp script

top command gives cpu running activities on your machine
eg

Code:

[root@aaaaa ~]# top
top - 18:41:01 up  8:38,  5 users,  load average: 0.03, 0.16, 0.16
Tasks: 172 total,   1 running, 170 sleeping,   0 stopped,   1 zombie
Cpu(s):  2.6%us,  1.0%sy,  0.4%ni, 92.1%id,  3.5%wa,  0.2%hi,  0.3%si,  0.0%st
Mem:   1942552k total,  1805524k used,   137028k free,   445796k buffers
Swp:  5116692k total,        0k used,  5116692k free,   873612k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                                                    
16838 root      15   0  144m  52m  14m S 15.8  2.8   1:29.38 npviewer.bin                                                                                               
 3425 root      15   0  286m  17m 8976 S  4.0  0.9   4:55.70 Xorg                                                                                                       
14771 root      15   0  2428 1060  792 S  2.0  0.1   0:21.24 top                                                                                                        
  1 root      15   0  2160  648  556 S  0.0  0.0   0:00.61 init                                                                                                       
   2 root      RT  -5     0    0    0 S  0.0  0.0   0:00.04 migration/0                                                                                                

    3 root      39  19     0    0    0 S  0.0  0.0   0:00.00 ksoftirqd/0

to stop top command from exectunig we have to press ctrl-c

i want to send ctrl-c signalin .exp script or a simple bash script

thx in advance

Last edited by pludi; 08-03-2011 at 11:06 AM..

alexzander18

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LEARN ABOUT OSX

topsyscall

topsyscall(1m)							   USER COMMANDS						    topsyscall(1m)

NAME

       topsyscall - top syscalls by syscall name. Uses DTrace.

SYNOPSIS

       topsyscall [-Cs] [interval [count]]

DESCRIPTION

       This  program  continually prints a report of the top system calls, and refreshes the display every 1 second or as specified at the command
       line.

       Since this uses DTrace, only users with root privileges can run this command.

OPTIONS

       -C     don't clear the screen

       -s     print per second values

EXAMPLES

       Default output, 1 second updates,
	      # topsyscall

       Print every 5 seconds,
	      # topsyscall 5

       Print a scrolling output,
	      # topsyscall -C

FIELDS

       load avg
	      load averages, see uptime(1)

       syscalls
	      total syscalls in this interval

       syscalls/s
	      syscalls per second

       SYSCALL
	      system call name

       COUNT  total syscalls in this interval

       COUNT/s
	      syscalls per second

DOCUMENTATION

       See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver-
       bose descriptions explaining the output.

EXIT

       topsyscall will run until Ctrl-C is hit, or the specified interval is reached.

AUTHOR

       Brendan Gregg [Sydney, Australia]

SEE ALSO

       dtrace(1M), prstat(1M)

version 0.90							   Jun 13, 2005 						    topsyscall(1m)

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